diff mbox series

libceph: Convert to use the preferred fallthrough macro

Message ID 20200818122637.21449-1-linmiaohe@huawei.com (mailing list archive)
State New, archived
Headers show
Series libceph: Convert to use the preferred fallthrough macro | expand

Commit Message

Miaohe Lin Aug. 18, 2020, 12:26 p.m. UTC
Convert the uses of fallthrough comments to fallthrough macro.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 net/ceph/ceph_hash.c    | 20 ++++++++++----------
 net/ceph/crush/mapper.c |  2 +-
 net/ceph/messenger.c    |  4 ++--
 net/ceph/mon_client.c   |  2 +-
 net/ceph/osd_client.c   |  4 ++--
 5 files changed, 16 insertions(+), 16 deletions(-)

Comments

Jeffrey Layton Aug. 18, 2020, 7:56 p.m. UTC | #1
On Tue, 2020-08-18 at 08:26 -0400, Miaohe Lin wrote:
> Convert the uses of fallthrough comments to fallthrough macro.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> ---
>  net/ceph/ceph_hash.c    | 20 ++++++++++----------
>  net/ceph/crush/mapper.c |  2 +-
>  net/ceph/messenger.c    |  4 ++--
>  net/ceph/mon_client.c   |  2 +-
>  net/ceph/osd_client.c   |  4 ++--
>  5 files changed, 16 insertions(+), 16 deletions(-)
> 
> diff --git a/net/ceph/ceph_hash.c b/net/ceph/ceph_hash.c
> index 81e1e006c540..16a47c0eef37 100644
> --- a/net/ceph/ceph_hash.c
> +++ b/net/ceph/ceph_hash.c
> @@ -50,35 +50,35 @@ unsigned int ceph_str_hash_rjenkins(const char *str, unsigned int length)
>  	switch (len) {
>  	case 11:
>  		c = c + ((__u32)k[10] << 24);
> -		/* fall through */
> +		fallthrough;
>  	case 10:
>  		c = c + ((__u32)k[9] << 16);
> -		/* fall through */
> +		fallthrough;
>  	case 9:
>  		c = c + ((__u32)k[8] << 8);
>  		/* the first byte of c is reserved for the length */
> -		/* fall through */
> +		fallthrough;
>  	case 8:
>  		b = b + ((__u32)k[7] << 24);
> -		/* fall through */
> +		fallthrough;
>  	case 7:
>  		b = b + ((__u32)k[6] << 16);
> -		/* fall through */
> +		fallthrough;
>  	case 6:
>  		b = b + ((__u32)k[5] << 8);
> -		/* fall through */
> +		fallthrough;
>  	case 5:
>  		b = b + k[4];
> -		/* fall through */
> +		fallthrough;
>  	case 4:
>  		a = a + ((__u32)k[3] << 24);
> -		/* fall through */
> +		fallthrough;
>  	case 3:
>  		a = a + ((__u32)k[2] << 16);
> -		/* fall through */
> +		fallthrough;
>  	case 2:
>  		a = a + ((__u32)k[1] << 8);
> -		/* fall through */
> +		fallthrough;
>  	case 1:
>  		a = a + k[0];
>  		/* case 0: nothing left to add */
> diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
> index 07e5614eb3f1..7057f8db4f99 100644
> --- a/net/ceph/crush/mapper.c
> +++ b/net/ceph/crush/mapper.c
> @@ -987,7 +987,7 @@ int crush_do_rule(const struct crush_map *map,
>  		case CRUSH_RULE_CHOOSELEAF_FIRSTN:
>  		case CRUSH_RULE_CHOOSE_FIRSTN:
>  			firstn = 1;
> -			/* fall through */
> +			fallthrough;
>  		case CRUSH_RULE_CHOOSELEAF_INDEP:
>  		case CRUSH_RULE_CHOOSE_INDEP:
>  			if (wsize == 0)
> diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
> index 27d6ab11f9ee..bdfd66ba3843 100644
> --- a/net/ceph/messenger.c
> +++ b/net/ceph/messenger.c
> @@ -412,7 +412,7 @@ static void ceph_sock_state_change(struct sock *sk)
>  	switch (sk->sk_state) {
>  	case TCP_CLOSE:
>  		dout("%s TCP_CLOSE\n", __func__);
> -		/* fall through */
> +		fallthrough;
>  	case TCP_CLOSE_WAIT:
>  		dout("%s TCP_CLOSE_WAIT\n", __func__);
>  		con_sock_state_closing(con);
> @@ -2751,7 +2751,7 @@ static int try_read(struct ceph_connection *con)
>  			switch (ret) {
>  			case -EBADMSG:
>  				con->error_msg = "bad crc/signature";
> -				/* fall through */
> +				fallthrough;
>  			case -EBADE:
>  				ret = -EIO;
>  				break;
> diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
> index 3d8c8015e976..d633a0aeaa55 100644
> --- a/net/ceph/mon_client.c
> +++ b/net/ceph/mon_client.c
> @@ -1307,7 +1307,7 @@ static struct ceph_msg *mon_alloc_msg(struct ceph_connection *con,
>  		 * request had a non-zero tid.  Work around this weirdness
>  		 * by allocating a new message.
>  		 */
> -		/* fall through */
> +		fallthrough;
>  	case CEPH_MSG_MON_MAP:
>  	case CEPH_MSG_MDS_MAP:
>  	case CEPH_MSG_OSD_MAP:
> diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
> index e4fbcad6e7d8..7901ab6c79fd 100644
> --- a/net/ceph/osd_client.c
> +++ b/net/ceph/osd_client.c
> @@ -3854,7 +3854,7 @@ static void scan_requests(struct ceph_osd *osd,
>  			if (!force_resend && !force_resend_writes)
>  				break;
>  
> -			/* fall through */
> +			fallthrough;
>  		case CALC_TARGET_NEED_RESEND:
>  			cancel_linger_map_check(lreq);
>  			/*
> @@ -3891,7 +3891,7 @@ static void scan_requests(struct ceph_osd *osd,
>  			     !force_resend_writes))
>  				break;
>  
> -			/* fall through */
> +			fallthrough;
>  		case CALC_TARGET_NEED_RESEND:
>  			cancel_map_check(req);
>  			unlink_request(osd, req);


Looks sane. Merged into ceph-client/testing branch.

Thanks!
Ilya Dryomov Aug. 19, 2020, 7:39 a.m. UTC | #2
On Tue, Aug 18, 2020 at 9:56 PM Jeff Layton <jlayton@kernel.org> wrote:
>
> On Tue, 2020-08-18 at 08:26 -0400, Miaohe Lin wrote:
> > Convert the uses of fallthrough comments to fallthrough macro.
> >
> > Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> > ---
> >  net/ceph/ceph_hash.c    | 20 ++++++++++----------
> >  net/ceph/crush/mapper.c |  2 +-
> >  net/ceph/messenger.c    |  4 ++--
> >  net/ceph/mon_client.c   |  2 +-
> >  net/ceph/osd_client.c   |  4 ++--
> >  5 files changed, 16 insertions(+), 16 deletions(-)
> >
> > diff --git a/net/ceph/ceph_hash.c b/net/ceph/ceph_hash.c
> > index 81e1e006c540..16a47c0eef37 100644
> > --- a/net/ceph/ceph_hash.c
> > +++ b/net/ceph/ceph_hash.c
> > @@ -50,35 +50,35 @@ unsigned int ceph_str_hash_rjenkins(const char *str, unsigned int length)
> >       switch (len) {
> >       case 11:
> >               c = c + ((__u32)k[10] << 24);
> > -             /* fall through */
> > +             fallthrough;
> >       case 10:
> >               c = c + ((__u32)k[9] << 16);
> > -             /* fall through */
> > +             fallthrough;
> >       case 9:
> >               c = c + ((__u32)k[8] << 8);
> >               /* the first byte of c is reserved for the length */
> > -             /* fall through */
> > +             fallthrough;
> >       case 8:
> >               b = b + ((__u32)k[7] << 24);
> > -             /* fall through */
> > +             fallthrough;
> >       case 7:
> >               b = b + ((__u32)k[6] << 16);
> > -             /* fall through */
> > +             fallthrough;
> >       case 6:
> >               b = b + ((__u32)k[5] << 8);
> > -             /* fall through */
> > +             fallthrough;
> >       case 5:
> >               b = b + k[4];
> > -             /* fall through */
> > +             fallthrough;
> >       case 4:
> >               a = a + ((__u32)k[3] << 24);
> > -             /* fall through */
> > +             fallthrough;
> >       case 3:
> >               a = a + ((__u32)k[2] << 16);
> > -             /* fall through */
> > +             fallthrough;
> >       case 2:
> >               a = a + ((__u32)k[1] << 8);
> > -             /* fall through */
> > +             fallthrough;
> >       case 1:
> >               a = a + k[0];
> >               /* case 0: nothing left to add */
> > diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
> > index 07e5614eb3f1..7057f8db4f99 100644
> > --- a/net/ceph/crush/mapper.c
> > +++ b/net/ceph/crush/mapper.c
> > @@ -987,7 +987,7 @@ int crush_do_rule(const struct crush_map *map,
> >               case CRUSH_RULE_CHOOSELEAF_FIRSTN:
> >               case CRUSH_RULE_CHOOSE_FIRSTN:
> >                       firstn = 1;
> > -                     /* fall through */
> > +                     fallthrough;
> >               case CRUSH_RULE_CHOOSELEAF_INDEP:
> >               case CRUSH_RULE_CHOOSE_INDEP:
> >                       if (wsize == 0)
> > diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
> > index 27d6ab11f9ee..bdfd66ba3843 100644
> > --- a/net/ceph/messenger.c
> > +++ b/net/ceph/messenger.c
> > @@ -412,7 +412,7 @@ static void ceph_sock_state_change(struct sock *sk)
> >       switch (sk->sk_state) {
> >       case TCP_CLOSE:
> >               dout("%s TCP_CLOSE\n", __func__);
> > -             /* fall through */
> > +             fallthrough;
> >       case TCP_CLOSE_WAIT:
> >               dout("%s TCP_CLOSE_WAIT\n", __func__);
> >               con_sock_state_closing(con);
> > @@ -2751,7 +2751,7 @@ static int try_read(struct ceph_connection *con)
> >                       switch (ret) {
> >                       case -EBADMSG:
> >                               con->error_msg = "bad crc/signature";
> > -                             /* fall through */
> > +                             fallthrough;
> >                       case -EBADE:
> >                               ret = -EIO;
> >                               break;
> > diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
> > index 3d8c8015e976..d633a0aeaa55 100644
> > --- a/net/ceph/mon_client.c
> > +++ b/net/ceph/mon_client.c
> > @@ -1307,7 +1307,7 @@ static struct ceph_msg *mon_alloc_msg(struct ceph_connection *con,
> >                * request had a non-zero tid.  Work around this weirdness
> >                * by allocating a new message.
> >                */
> > -             /* fall through */
> > +             fallthrough;
> >       case CEPH_MSG_MON_MAP:
> >       case CEPH_MSG_MDS_MAP:
> >       case CEPH_MSG_OSD_MAP:
> > diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
> > index e4fbcad6e7d8..7901ab6c79fd 100644
> > --- a/net/ceph/osd_client.c
> > +++ b/net/ceph/osd_client.c
> > @@ -3854,7 +3854,7 @@ static void scan_requests(struct ceph_osd *osd,
> >                       if (!force_resend && !force_resend_writes)
> >                               break;
> >
> > -                     /* fall through */
> > +                     fallthrough;
> >               case CALC_TARGET_NEED_RESEND:
> >                       cancel_linger_map_check(lreq);
> >                       /*
> > @@ -3891,7 +3891,7 @@ static void scan_requests(struct ceph_osd *osd,
> >                            !force_resend_writes))
> >                               break;
> >
> > -                     /* fall through */
> > +                     fallthrough;
> >               case CALC_TARGET_NEED_RESEND:
> >                       cancel_map_check(req);
> >                       unlink_request(osd, req);
>
>
> Looks sane. Merged into ceph-client/testing branch.

I amended this to also cover fs/ceph and rbd.

Thanks,

                Ilya
diff mbox series

Patch

diff --git a/net/ceph/ceph_hash.c b/net/ceph/ceph_hash.c
index 81e1e006c540..16a47c0eef37 100644
--- a/net/ceph/ceph_hash.c
+++ b/net/ceph/ceph_hash.c
@@ -50,35 +50,35 @@  unsigned int ceph_str_hash_rjenkins(const char *str, unsigned int length)
 	switch (len) {
 	case 11:
 		c = c + ((__u32)k[10] << 24);
-		/* fall through */
+		fallthrough;
 	case 10:
 		c = c + ((__u32)k[9] << 16);
-		/* fall through */
+		fallthrough;
 	case 9:
 		c = c + ((__u32)k[8] << 8);
 		/* the first byte of c is reserved for the length */
-		/* fall through */
+		fallthrough;
 	case 8:
 		b = b + ((__u32)k[7] << 24);
-		/* fall through */
+		fallthrough;
 	case 7:
 		b = b + ((__u32)k[6] << 16);
-		/* fall through */
+		fallthrough;
 	case 6:
 		b = b + ((__u32)k[5] << 8);
-		/* fall through */
+		fallthrough;
 	case 5:
 		b = b + k[4];
-		/* fall through */
+		fallthrough;
 	case 4:
 		a = a + ((__u32)k[3] << 24);
-		/* fall through */
+		fallthrough;
 	case 3:
 		a = a + ((__u32)k[2] << 16);
-		/* fall through */
+		fallthrough;
 	case 2:
 		a = a + ((__u32)k[1] << 8);
-		/* fall through */
+		fallthrough;
 	case 1:
 		a = a + k[0];
 		/* case 0: nothing left to add */
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
index 07e5614eb3f1..7057f8db4f99 100644
--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -987,7 +987,7 @@  int crush_do_rule(const struct crush_map *map,
 		case CRUSH_RULE_CHOOSELEAF_FIRSTN:
 		case CRUSH_RULE_CHOOSE_FIRSTN:
 			firstn = 1;
-			/* fall through */
+			fallthrough;
 		case CRUSH_RULE_CHOOSELEAF_INDEP:
 		case CRUSH_RULE_CHOOSE_INDEP:
 			if (wsize == 0)
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 27d6ab11f9ee..bdfd66ba3843 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -412,7 +412,7 @@  static void ceph_sock_state_change(struct sock *sk)
 	switch (sk->sk_state) {
 	case TCP_CLOSE:
 		dout("%s TCP_CLOSE\n", __func__);
-		/* fall through */
+		fallthrough;
 	case TCP_CLOSE_WAIT:
 		dout("%s TCP_CLOSE_WAIT\n", __func__);
 		con_sock_state_closing(con);
@@ -2751,7 +2751,7 @@  static int try_read(struct ceph_connection *con)
 			switch (ret) {
 			case -EBADMSG:
 				con->error_msg = "bad crc/signature";
-				/* fall through */
+				fallthrough;
 			case -EBADE:
 				ret = -EIO;
 				break;
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 3d8c8015e976..d633a0aeaa55 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -1307,7 +1307,7 @@  static struct ceph_msg *mon_alloc_msg(struct ceph_connection *con,
 		 * request had a non-zero tid.  Work around this weirdness
 		 * by allocating a new message.
 		 */
-		/* fall through */
+		fallthrough;
 	case CEPH_MSG_MON_MAP:
 	case CEPH_MSG_MDS_MAP:
 	case CEPH_MSG_OSD_MAP:
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index e4fbcad6e7d8..7901ab6c79fd 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -3854,7 +3854,7 @@  static void scan_requests(struct ceph_osd *osd,
 			if (!force_resend && !force_resend_writes)
 				break;
 
-			/* fall through */
+			fallthrough;
 		case CALC_TARGET_NEED_RESEND:
 			cancel_linger_map_check(lreq);
 			/*
@@ -3891,7 +3891,7 @@  static void scan_requests(struct ceph_osd *osd,
 			     !force_resend_writes))
 				break;
 
-			/* fall through */
+			fallthrough;
 		case CALC_TARGET_NEED_RESEND:
 			cancel_map_check(req);
 			unlink_request(osd, req);